Sash-bar for greenhouses or other glazed structures.



- PatentedA Apr. I5, |902. P. M. PIERSON. W-gfgwnno aEeNHousss on omen GLAzEn sTnucTuREs.

(Application hled June 28, 1901.)

(No Model.)

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llrrn STATES PAUI M. PIERSON, OF SOARBORO, NEV YORK.

SASH-BAR FOR GREENHOUSES OR OTHER GLAZED STRUCTURES.

SEGIFICATION forming part of Letters Patent No. 697,746, dated April 15j, 1902.

Application filed June 28, 1901. Serial No. 66,342. (No model.)

To all whoml t may concern:

Be it known that I, PAUL M. PIERsON,a citizen of the United States, residing at Scarboro, in the county of IVestchester and State of New York, have invented an Improvementin Sash- Bars for Greenhouses or other Glazed Structures, of which the followingis aspecitication.

My invention relates to a novel construction of sash-bars for greenhouses. Heretofore it has been usual to make these sashbars of long strips of wood with oppositelygrooved edges, the edges receiving the putty and the glass and the bars in turn being supported upon beams at right angles thereto and also upon supporting-posts. A wooden bar has also been made and been supported by an edgewise plate of metal let into the bar; but these various structures were of considerable dimensions and cast shadows in the greenhouse, so that more or less of the sunlight was cut off from the plants. Furthermore, with a wooden structure the parts are not only of large size for strength, but they rot out from the moisture and make constant repairs necessary.

The object of my invention is to overcome these objections, to produce a bar of increased strength, durability, and lightness, and a bar in which the shadow-line is reduced.

In my improvement I employ a bar of wood and metal, the metal furnishing the strength and being the main portion exposed inside the greenhouse and the wood fitting the metal part and coming between the glass and being the main portion exposed outside to the weather, as the wood being a non--conductor is not susceptible to change with heat and cold, and as the metal is not easily affected by moisture the arrangement employed by me possesses a maximum of efficiency and a minimum of space occupied.

I prefer in carrying out my invention to employ a U-shaped bar of metal and to fit the wooden bar therein and to make therewith a projecting rib which occupies a place between the edges of the lines of glass. I also prefer to employ moisture-troughs arranged in connection with the metal bar and may employ a metal molding secured to the wooden bar upon the outside, all of which features are hereinafter more particularly set forth.

In the drawings, Figure l is a cross-section,

and Fig. 2 a longitudinal section, representing the most approved form of my sash-bar. Figs. 8, 4, 5, and 6 are cross-sections of forms of my invention. A

With special reference toiFigs. l and 2, a represents the wooden bar; b the U-shaped metal bar receiving the larger part of the wooden bar. A projecting rib rises from the bar a and is central therewith. At the sides of this rib'are grooves to receive the putty d, and the edges of the U-shaped bar bare/approximately on a line with the parts of the wooden bar at these grooves. The glass 3 lies upon the putty, and a close joint is made thereby as between the edges of the glass and the projecting rib of the wood bar a and as between the under surfaces of the glass 3 and the edge of the U -shaped metal bar l). I prefer to employ a molding or plate of sheet metal, over and longitudinal with the projecting rib of the bar d and secured thereto by screws or nails. The edges of this plate extend down to and preferably bear upon the outer surfaces of the glasses 3, and the spaces within the plate 5 are advantageously filled with putty. k represents an angle iron girder, one of a number placed transversely of the sash-bar, there being screws 2 preferably passing through the girder and through openings in the base of the metal bar b up into the wooden bar d and by which the parts are securely connected together. In these iigures, f represents a moisture-trough beneath the metal bar b and above the girder 7c, the edges thereof being upturned and perforations made therein for the screws 2. These perforations are preferably punched in the sheet of metal forming the moisture-troughf. In punching the holes in the moisture-trough f for the screws 2 a raised portion or neck is produced around the screw-opening, and I prefer to make lthe holes in the metal bar b suiliciently larger than the screws 2 to receive these neck portions of the moisture-trough. The function performed by these neck portions is to throw off the water from the screws 2 to prevent the lower ends and heads of the screws being rusted where they pass through the girder, and the openings in the metal bar Z2 provide for the exit of any moisture or water that may possibly get in between the wooden and metal bars, The wooden bar a IOO does not entirely fill the metal bar l), so that an appreciable internal chamber to receive any collected moisture finding its way between the Wood and'inetal parts is formed within and. at the base of the metal bar. Should any moisture so collect, it will readily escape into the inoisture-troughf through the openings in the metal bar b.

The structures shown in Figs. 3, 4, and 5 are to all intents and purposes the equivalent of the structures shown in Figs. 1 and 2, in all cases the metal bar inclosing the wooden bar beneath the glass and leaving part of the wooden bar between the glass and exposed above the same. In the structure shown in Fig. 3 the metal bar c is of U form with angular corners, and the wooden barais received therein and the parts are connected by the screws 2. The upper edges of the metal bar are inwardly tapered and the moisturetroughs g are hung over these edges, and the edges of the wooden bar adjacent to the upper edges of the metal bar are also tapered to provide recesses to receive the putty.

In thestruct-ure shown in Fig. 4 the metal bardisofangularconstruction. Thewooden bar a2 fits the same and the metal bar CZ comes up to the under surfaces of the glass. The parts are connected by screws 2,and the moistu re-troughs h are hung over the'upper edges of the metal bar in a manner similar to that shown in Fig. 3, and recesses are provided for the putty, which are similar to 'the recesses in Fig. 3.

In Fig. 5 the wooden bar a3 is of rectangular form in cross-section and is received by the U form of metal bar e. The upper edges of the metal bar are inwardly tapered to provide recesses at their surfaces and the vertical edges of the wooden bar for the reception of the putty upon which the glasses 3 are laid. Screws 2 are also provided in this form of the invention for connecting the metal and wooden bars. In this metal bar e, Fig. 5, the moisture-troughs z' are made integral or of the same metal as the bar by rolling channels in the oppose edges of the bar.

In the form of invention, Fig. 6, over and above the form shown in Fig. 1, the Wooden bar ai* has been deepened and the metal bar Am of.y U form moved sufficiently away from the glasses 3 to provide moisture-troughs Z of peculiar form near the glasses hanging upon the upper edges of the bar a4 below the putty and conforming to the surface of the bar a4 above the bar m and to the edges of the bar m, the free edges of which ar'e turned up beyond the bar m.

I do not herein limit myself to the special cross-sectional form of the wooden bar or of the metal bar nor to the special form of the moisture-troughs or the location of the connecting-screws or other equivalent fastening devices that may be employed.

I claim as my invention- 1. A sash-bar for greenhouses and other glazed structures, comprising a metal bar of substantially U shape, a wooden bar the larger part of which is received within the channel of the metal bar, a portion of the wooden bar extending between the glasses and projecting beyond the same and receiving the devices securing the glasses, there being shoulders at either side of the projecting portion of the wooden bar upon which the glasses rest and are supported and fastening devices for connecting the met-al and wooden bars, substantially as set forth.

2. A sash-bar for greenhouses and other glazed structures, comprising a wooden bar having a portion of reduced width foi'ming a rib with a shoulder at either side, a metal bar receiving the main portion of the wooden bar, and the rib portion of the wooden bar being between the glasses and projecting beyond the same, and fastening devices passing up through the metal bar from the under side into the wooden bar for connecting the parts, substantially as set forth.

3. A sash-bar for greenhouses and other glazed structures, comprising a wooden bar having a portion of reduced width forming a rib with a shoulder at either side, a metal bar receiving the main portion of the wooden bar and the rib portion of the wooden bar being between the glasses and projecting beyond the same and fastening devices passing through the metal bar into the wooden bar for connecting the parts,and moisture-troughs connected to and supported by and coming at opposite longitudinal sides of the metal bar, substantially as set forth.

4. A sash-bar for greenhouses, comprising a wooden bar having a rising projecting 1ongitudinal rib, a U-shaped metal bar surrounding the larger portion of the Wooden bar and adapted at its free edges to come up to the under surface vof the glass'and completely inclose the part of the wooden bar beneath the glass, the rib of the wooden bar coming between the glasses and projecting above the same, there being grooves upon the opposite sides of the projecting rib to receive putty into which the glasses are set, and fastening devices passing through openings in the lower portion of the U-shaped metal bar into the wooden bar for connecting the parts, substantially as set forth.

5. A sash-bar for greenhouses comprising a wooden bar having a rising projecting longitudinal rib, a U-shaped metal bar surrounding the larger portion of the wooden bar'and adapted at its free edges to come up to the under surface of the glass and completely inclose the'part of the Wooden bar beneath the glass, the rib of the wooden bar coming between the glasses and projecting above the same, there being grooves upon the opposite sides of the projecting rib to receive putty into which the glasses are set, and screws passing through openings in the lower portion of the U -shaped metal bar into the wooden bar for connecting the parts, and a moisture-trough below the U-shaped metal IOO TIO

bar with upturned edges and located parallel with the metal bar and held thereto by the same screws that connect the metal and the wooden bars, substantially as set forth.

6. A sash-bar for greenhouses comprisinga wooden bar having a rising projecting longitudinal rib, a U-shaped metal bar surrounding the larger portion of the wooden bar and adapted at its free edges to come up to the under surface of the glass and completely inclose the part of the wooden bar beneath the glass, the rib of the wooden bar coming between the glasses and projecting above the same, therebeing` grooves upon the opposite sides of the projecting rib to receive putty into which the glasses are set, screws passing through openings in the lower portion of the U-shaped metal bar into the wooden bar for connecting the parts, a moisture-trough below the U-shaped metal bar with upturned edges and located parallel with the metal bar and held thereto by the same screws that connect the metal and the wooden bars, the openings in the metal bar being of larger area than the screws passing therethrough, and the openings forthe screws in the moisture-trough being provided with a neck for deiiecting the moisture from the screws, and the said neck being received in the openings in the metal bar, substantially as set forth.

7. A sash-bar for greenhouses and other glazed structures, comprising a wooden bar, a metal bar receiving a part of the wooden bar, and a part of the wooden bar being between the glasses, and projecting beyond the same, and fastening devices for connecting the metal and wooden bars, there being openings through the lower portion4 of the metal bar and the wooden bar not entirely filling the metal bar, so that an appreciable internal chamber is formed between the same and the base of the metal bar to receive any collected moisture passing between the said bars, substantially as set forth. A

8. A sash-bar for greenhouses and other glazed structures, comprising a wooden bar having a portion of reduced width forming a rib with a shoulder at either side, a metal bar receiving the main portion of the wooden bar andthe rib portion of the wooden barbeingbetween the glasses and projecting beyond the same and fastening devices passing through the metal bar into the Wooden bar for connectin g the parts, moisture-troughs connected to the said parts for receiving the condensation from the under side of the glasses and water that may leak through the structure and a plate of metal over and longitudinal with the projecting portion of the wooden bar and secured thereto with the edges of the plate extending down to and preferably bearing upon 'the outer surfaces of the glasses, substantially as set forth.

9. A sash-bar for greenhouses and other glazed structures, comprising a wooden bar .having a portion of reduced Width forming a rib with a shoulder at either side, a metal bar receiving the main portion of the Wooden bar and the rib portion ofY the Wooden bar being between the glasses and projecting beyond the same, fastening devices passing through the metal bar into the wooden bar for connecting the parts, and a plate of` metal over and longitudinal with the projecting portion of the wooden bar and secured thereto with the edges of the plate extending down to and preferably bearing upon the outer surface of the glasses, substantially as set forth.

l0. Asash-bar for greenhouses, comprising l a wooden bar having a rising projecting 1ongitudinal rib, a metal bar surrounding the larger portion of the wooden bar and adapted at its free edges to come up to the under surface of the glass and completely inclose the part of the wooden bar beneath the glass, the rib of the wooden bar coming between the glasses and projecting above the same, and moisture-troughs connected to the said parts for receiving the condensation from the under side of the glasses and water that may leak through the structure, substantially as set forth.

Signed by me this 6th day of June, 1901.

PAUL PIERSON.

NVitnesses:

Guo. T. PINCKNEY, S. T. I-IAVILAND. 

